Location Estimation of a Random Signal Source Based on Correlated Sensor Observations

@article{Sundaresan2011LocationEO,
  title={Location Estimation of a Random Signal Source Based on Correlated Sensor Observations},
  author={Ashok Sundaresan and Pramod K. Varshney},
  journal={IEEE Transactions on Signal Processing},
  year={2011},
  volume={59},
  pages={787-799}
}
The problem of location estimation of a source of random signals using a network of sensors is considered. A novel maximum-likelihood estimation (MLE) based approach using copula functions is proposed. The measurements received at the sensors are often spatially correlated and characterized by a multivariate distribution. Using the theory of copulas, the joint parametric density of sensor observations (joint likelihood) is approximated assuming only the knowledge of the marginal likelihood… 
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